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Finding the Fourth Proportional to 121,043.60, 167,044.92 and 73,269.92

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Solution

The fourth proportional to 121,043.60, 167,044.92 and 73,269.92 is: 101,115.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,043.60 : 167,044.92 = 73,269.92 : x
  2. Step 2: Convert to fraction form
    121,043.60/167,044.92 = 73,269.92/x
  3. Step 3: Cross multiply
    121,043.60x = 167,044.92 × 73,269.92
  4. Step 4: Simplify right side
    121,043.60x = 12,239,367,924.81
  5. Step 5: Solve for x
    x = 12,239,367,924.81/121,043.60
  6. Step 6: Final answer
    x = 101,115.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.